Turn-plow



(No Model.)

H. THADEN.

TURN PLOW. No. 458,121.

Patented Aug. 18, 1891.

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' UNITED STATES PATENT EEicE,

HERMAN THADEN, OF ATLANTA, GEORGIA.

TU RN-PLOW.

SPECIFICATION forming part of Letters Patent No. 458,121, dated August18, 1891.

Application filed March 19, 1891- Serial No. 385,667. (No model.)

To all whom it may concern.-

Be it known that I, HERMAN TI-IADEN, a citizen of the United States, anda resident of At1anta,in the county of Fulton and State of Georgia, haveinvented certain new and useful Improvements in Turn-Flows; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference beinghad to theaccompanyingdrawings, and to figures of reference marked thereon, whichform a part of this specification.

This invention, as above stated, relates to turn-plows, havingparticular reference to so constructing the abrading element and thelandside as to reduce the friction of operation, thus obviating to agreat extent the wear and reducing the draft required to operate, alsoproviding a plow for turfed or otherwise hardcrusted lands, which willcut a clear uniform furrow, the details of construction of which arehereinafter fully specified. In plows as ordinarily constructed the sodor crust is cut entirely by an upward pressure thereon by the front edgeof the mold-board, which is to that end sharp in new plows, soon,however, Wearing very much rounded or obtuse, whereupon the sod isbroken by an upward wedging action of the share and mold-board, suchstrain being applied over almost all the entire superficial area of saidparts and necessarily causing the plow to draw heavily and thefurrow-slice to be rough, broken, and badly turned. In addition toavoiding the above results in this device, it is found that the plowruns much more easily and is more easily kept to a straight line, andthat the revolving landside turning with the resistance the frictionthereon is removed.

In the accompanying drawings, Figure l is a side elevation from the sideusually carrying the landside, showing the improved form of the sideplate and the attachment of the cutting-disk and means for adjustmentthereof. Fig. 2 is a front elevation of Fig. 1. Fig.

3 is a section of the sheth, side plate, and ad-v justing-plates, thesection being taken horizontally near the beam and through one of thedisk-attachment holes.

In the figures like reference-numbers are employed in the designation ofcorresponding elements of construction.

1 is the beam, 2 the sheth, 3 the moldboard, and 4 the share, any ofwhich may be of any construction adaptable to the improvements added bythe present invention.

In the construction shown the sheth 2 is of a single piece of metal,curved forwardly to the proper radii, the upper end reduced andscre\\-'-threaded, passed through the beam 1 and therein secured by anut on said screwthreaded portion, the lower end being sheared off toform the lower portion of the sole, the share 4L and mold-board 3 beingsecured there to in the usual manner. Said sheth is provided with aseries of holes 5, for a purpose hereinafter seen. The plate 6 issecured to the sheth, as shown, and conforms to the curvature thereofwhere it contacts therewith and has a backward extension 7, which formsthe posterior portion of the sole, said plate 6 and backward extension 7thereof forming a back bearing for the disk 8, which is pivoted on theshoulder-screw 9, and so prevents the front of the disk from beingpressed away from the edge of the mold-board, with which it shouldlightly contact. The disk is beveled on its outer side so as to form acutting-edge on the line of the inner side, said bevel causing the frontedge of said disk to press inwardly against the mold-board. Holes 10 arepunched through or cast in the plate 6 in position corresponding to theposition of the holes 5 in the sheth 2, said holes being made square toreceive a squared portion of the bolt 9 to prevent its turning, thescrew-threaded portion passing through the necessary one of the holes 5,and a nut being screwed there on the whole structure will be securelyclamped together at that point, and the shoulder portion being slightlylonger than the disk is thick said disk will revolve freely on saidscrew. The belt 9 may be used in any of the holes, according to the sizeof the disk, diametrically, and to whether it is necessary from thenature of the land that the disk run a greater or less distance belowthe sole, and also if it is desired to plow deeper than ordinary thedisk should be raised so as to cut the sod. Besides cutting the sod,thus taking said friction and the wear resulting therefrom from thefront edge of the mold-board, this disk acts as a caster-wheel,assisting the sole to carry the plow, and also as a revoluble lan (1-side, revolving in contact with the land, all oi": which obviouslyreduces friction to a minimum.

The space alongside the lower sheth between the lower ends of the plates(3 and the landside portion of the share forms a clearance-throat andobviates all danger of the cramping of the disk by soil getting behindit.

In order that the plate 6, and hence the disk, may be moved inwardly totake up wear, liners 11, of thin metal, may be placed between said plate6 and the sheth 2, a removal of one of which will, for instance, take uponeseasons wear. The liners 11 may be perforated for each of the seriesofholes through the sheth and plate 6 or slotted for the entire series.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent of the United States, is-

In a device of the class specified, the sheth bolted to the beam andcurved downwardly and forwardly therefrom, and the plate 6, carrying thebackwardly-projecting arm 7, said sheth and plate being perforated by aseries of holes, and a cutting-disk 8, pivoted to the side of saidstructure by abolt passing through one of said series of holes, as andfor the purpose specified, and a share secured to said sheth.

In testimony whereofl hereunto aflix my signature in presence of twowitnesses.

HERMAN TIIADEN.

Vitnesses:

A. P. W001), A. A. Wool).

